Condenser for ammonia-gas.



Patented Nov. 4, I902.

(Application. filed Dec. 23, 1901.)

2 Sheets-Sheet I.

(No Model.)

Witnesses,

w w 3333 d W m k Hm mig giggfl Eu E w w k No. 712,704. Patented Nov. 4, I902. J. L. MORRIS. CONDENSER FOR AMMONIA GAS.

(Application filed Dec. 23, 1901.

(No Model.) 2 Sheets-Sheet 2 It J -mrrzja.

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UNITED STATES PATENT OFFICE.

JOSEPH L. MORRIS, OF LAWRENCE, KANSAS.

CONDENSER FOR AMMONIA-GAS.

SPECIFICATION forming part of Letters Patent No. 712,704, dated November 4, 1902 Application filed December 23, 1901. Serial No. 86,908. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH L. MORRIS, a citizen of the United States, residing at Lawrence, in the county of Douglas and State of Kansas, have invented new and useful Improvemen ts in Condensers for Ammonia-Gas, of which the following is a specification.

My invention relates to a condenser which may be employed in connection with certain refrigerating apparatus for which I obtained United States Letters Patent No. 634,583, dated October 10, 1899. That portion of said refrigerating apparatus which is associated with the present invention is represented in the accompanying drawings.

The object of my invention is (referring to Figure 4 of the above-named patent) to provide a very efficient auxiliary condensing apparatus forliquefying the am monia-gas after it leaves coil 56 on its way to the receiver 15 in case the temperature, of the water in the tank 22 should occasionally become so high that the ammonia-gas would not be liquefied in its passage through said coil 56.

My invention will now be fully described with reference to the accompanying drawings, in which- Fig. 1 is a front elevation of the condenser, termed hereinafter the aerator, its front plate being removed, and a portion of plate 3 being broken away, aportion of each horizontal perforated plate being in section. Fig. 2 is a plan view of the aerator, the top being removed to expose the interior. Fig. 3 is a diagrammatic View showing the auxiliary coil, the main condensing coil, and the connections between said coils and the receiver.

Referring to Figs. 1 and 2, 4 designates the water-tank, corresponding to tank 22 in my aforesaid patent. The front of the tank is formed by an upright plate 3. The sides 1 1 of the tank project forwardly, as shown in Fig. 2, and the space between them and the plate 3 is inclosed bya front plate2, forming a water-tight chamber for the auxiliary condenser and perforated plates described hereinafter. Coils 5 and 26 in Fig. 2 correspond to coils 56 and 27 in the aforesaid patent, 5 being the main condensing-coil. Arranged vertically between plates 2 and 3 is the aux- I iliary condensing-pipe 6, which may be secured to either the sides 1 1 or to plate 3 in any preferred manner. The upper end of pipe 6 is connected by a pipe 7 to a pipe 8, leading from the main condensing-coil 5 to the receiver 9, as shown in Fig. 3. The lower end of auxiliary pipe 6 is also connected to said pipe 8 bya pipe 10, as shown. Between the unions of pipe 7 10 with pipe 8 is a hand valve 12, and in pipes 7 10, respectively, are hand-valves 13 and 14. The operation of said valves will be readily understood. Valves 13 14 are normally closed, with valve 12 open, which permits the liquefied-ammonia solution to descend through pipe 8 into the receiver 9; but should the ammonia-gas fail to be liquefied in coil 5, owing to the water around said coil becoming warm, the operator would close valve 12 and open valves 13 14, thereby causing the gas to traverse the pipe 6 before reaching the receiver.

My improved means for cooling the gas in the pipe 6 forms the gist of the present invention and is described as follows: As shown in Fig. 1, a series of horizontal plates 15 15, 850., is arranged in the chamber. occupied by the auxiliary pipe 6, said chamber being termed hereinafter the aerator-chamber. Said plates are wide enough to extend from plate 3 to the cover-plate 2, and they are secured to the sides 1 1 or the plate 3, or to both, in any suitable manner. One end of every alternate plate meets one of the sides 1, while its opposite end falls short of the other side 1, thus forming a sinuous passage from top to bottom of the aerator-chamber. Each of these plates has perforations 16 therein, as shown in the top plate in Fig. 2. Above the top plate 15 is a faucet 17, which communicates with the water-tank 4. The valvestem 18 of said faucet extends out through the side 1, whereby the faucet may be opened or closed by the attendant. When the ammonia-gas is admitted to the auxiliary pipe 6, the faucet 17 is opened, admitting water from tank 4, from which it falls on the upper-perforated plate 15 and trickles down through each of said plates in succession. The perforations 16 are located directly above the runs of the pipe 6, so that the water falls on these pipes. The water is drained from the bottom plate 24 through a drain-tube 19, which is connected to a rotary pump 20.

(Shown in Fig. 2.) This pump, driven by any suitable motor, (not shown,) raises the water through a pipe 21, which conducts it to the tank 4:, whence it came. Preferably coupled to the shaft of the pump 20 is a blastfan or blower 23, the nozzle of which passes through the side 1 and projects into the aerator-chamber between the lowest perforated plate 15 and the bottom plate 24. The blower 23 forces a strong current of air through the sinuous passage formed by the plates 15, and an opening (not shown) may be provided in the top or one of the side plates 1 for theescape of the air. The passage of the drops of water through this blast of air will of course evaporate some of the water, and the heat absorbed by the vaporized water will be Withdrawn from the dripping water, which thus becomes cold and falling on the pipe 6 liquefies the ammonia-gas which has been admitted to said pipe by opening valves 13 and 14.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. An apparatus for liquefying ammoniagas, comprising a chamber, asinuous tube in said chamber for passage of the gas, said tube being composed of horizontal runs arranged vertically, a series of horizontal perforated plates arranged between the runs of said tube in such a manner as to form a sinuous air-pas.- sage through said chamber, means for admitting water to the uppermost of said plates, and a blast-fan connected to one end of said air passage, for cooling the water which falls through said perforated plates, substantially as described.

2. An apparatus for liquefying ammoniagas, comprising a chamber, a sinuous tube therein for passage of the gas, said tube being composed of horizontal runs arranged vertically, a series of horizontal perforated plates arranged between the runs of said tube in such a manner as to divide said chamber into a plurality of horizontal compartments communicating with one another at alternate sides of said chamber, a tank for delivering water to the uppermost of said plates, a blastfan connected to the lower portion of said chamber, a pump, a tube connecting said pump to the bottom of said chamber, and a tube connecting said tank to the pump; substantially as described.

3. The combination of a water-tank, a main condensing-coil 5 therein, an aerator-chamber, a sinuous gas-conducting tube in said chamber, said tube being composed of horizontal runs arranged vertically, a series of horizontal perforated plates arranged between the run of said tube in such a manner as to divide said chamber into a sinuous airpassage, means for admitting water from said tank to the uppermost of said perforated plates, a blast-fanrconnected to one end of said air-passage, a pump, a tube leading from the bottom of said chamber to the inlet of said pump, and a tube leading from said pump to a point above said water-tank, substantially as described.

4. An apparatus for liquefying ammoniagas, comprising a chamber, a sinuous tube in said chamber for passage of the gas, said tube being composed of horizontal runs arranged vertically, a series of horizontal perforated plates arranged between the runs of said tube in such a manner as to divide said chamber into a plurality of horizontal compartments communicating with each other at alternate sides of said chamber, a watentank, means for admitting water from said; tank to theyuppermost of said perforated plates, ablast-fan connected to the space betweenthe lowest of said plates and the bottom of said, chamber, and means for returningthe water from the bottom of the chamber to said, tank, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

JOSEPH L. MORRIS. Witnesses:

FRED. S. ADAMS, MAGGIE MORRIS. 

